Punch-press.



A. T. NUSS.

PUNCH PRESS.

APPLICATION FILED DEC. 6. 1913.

1,174,603. Patented Mar. 7,1916.

wi/bmeooeo V t I (W OFT ALBERT '1. N'USS, 0F JERSEY CITY, NEW JERSEY.

PUNCH-PRESS.

Application filed December 6, 1913.

To all whom it may concern:

Be it known that I, ALBERT T. Nuss,'a citizen of the United States, residing at J ersey City, in the county of Hudson and.

State of New Jersey, have invented new and useful Improvements in Punch-Presses, of which the following is a specification.

The general objects of this invention are to efiect the portability of a punch-press by a mechanic who has need for the same in his trade, and to admit of the mechanic to carry his own individual press in his kit of tools.

Heretofore, in the large size of punch press now in use, it has been necessary to locate the same at a certain station to which all mechanics desiring to use the same would have to go. For instance in the erection of a large building, the pressis generally located on a certain floor, and it is noted that mechanics working on other floors and desiring to use the press have to stop work and go to the floor where the press is located. This step is not only inconvenient but also results in the loss of a great deal of valuable time. Therefore, by the use of a simple portable device constructed in accordance with my invention I desire to overcome these defects and reduce the cost of labor to a minimum. And to attain the objects in view this invention resides in a portable press having a die adapted to be operated by the blow of a tool and a member for returning the die, also operated by the blow of a tool.

Other objects will appear and be better understood from that embodiment of my invention of which the following is a specification, reference being had to the accompanying drawings forming part hereof, in which: a

Figure 1 is a perspective view of the device. Fig. 2 is a front elevational view of the press, having portions broken away for the sake of clearness. Fig. 3 is a detail perspective view of the die member. Fig. 4 is a detail view of a portion of a conduit showing a hole punched by the die member.

The body 5 is preferably formed of steel and recessed in the bottom face (not shown) in order to lessen the weight of the metal. The front portion of the body is swelled and is provided with the recess 6 which forms the jaws 7 and 8.

Centrally fitted in the upper jaw 7 and adapted to reciprocate therein is the punch or die-member 9. This punch is provided Specification of Letters Patent.

Patented Mar. *7, 1916.

Serial N 0. 805,070.

with a die 10, which is of the usual shape for forming screw-holes in electric conduits, such as are used in buildings. This punch is adapted to be directed downwardly by the blow of a hammer or the like, and so that the upper end may not become burred, the end is beveled as at 11. The female member of the die is provided in the lower jaw 8 of the body and it will be noted by referring to Flg. 2, that the opening 12 flares outwardly at the bottom; this is to allow the pieces of metal removed by the die to fall through the opening 12 and not choke the same.

Means for removing the conduit from the die after the hole is punched, is provided in the angular plate 13, which is secured to the side of the body 5 by the screw 14, and extends into the recess 6 beyond the punch member 9 and serves as a stripper. The plate 13 is provided with an opening 15, which is of suflicient size to admit the shank portion of the punch to pass therethrough.

When an article, such as a conduit 6, is

desired to be punched, it is placed in the recess, so that the die alines with the predetermined location of the hole 0 and the top end of the punch 9 is struck with a hammer or other implement, thus forcing the die 10 to puncture the conduit; the upper portion of the die 10 is swelled or flared as at 16,

so that the die will form a beveled or counter-sunk puncture, as shown. Obviously, owing to the die puncturing the conduit, it will tend to jam within the puncture and carry the conduit upwardly when the punchmember is returned to its upper or initial position. Therefore, it is necessary to have the stripper plate 13 to remove the conduit from the die.

Means for returning the punch-member 9 upwardly, is provided in the form of a lever 17 which is pivoted in the stud 18 mounted on the body 5. One end of this lever is adapted to contact with the under portion of a lug 19 laterally positioned on the rear side of the punch member 9, and the opposite end of the lever is offset as at 20. Thus it will be seen that upon the punch member being directed downwardly, the end 20' will be forced downwardly by the lug 19, and manifestly the offset end 20 will be positioned relatively high. In order to return the punch member to its normal up-position, the oflset end 20 is struck by a suitable tool which action forces the end 20 to push the lug 19 upwardly, carrying thereby the punch member 9 of which the upward movement is limited by the lug 21.

In most instances in conduit work, it. is desired to have the screw hole 0 adjacent to the end of the conduit as shown in Fig. 4. To facilitate the locating of this hole, and to eliminate the, process of marking ofi" the location, a guide is provided in the form of the angular plate 22-, which is adjustably secured to the side of the body by the set screw 23. The lateral arm of the plate is positioned so as to extend within the recess and form a stop for the end of the conduit as shown in dotted lines in Fig. 2. Thus, the operator can readily insert a conduit in the recess, and it will be automatically positioned for the punching of the hole. WVhen it is desired to have a series of holes in the article to be punched, the screw is loosened, and by virtue of the slot 24, the plate may be raised sufiiciently to allow the conduit or such to pass thereunder.

It is obvious that those skilled in the art may vary the details of construction and arrangements of parts without departing fore I do not wish to be limited to such features except as may be required by the claim.

. What is claimed as new is:

A punch comprising a body having spaced jaws one of which is provided with a chip opening, a punch member slidably mounted in the other jaw and having a work engaging portion which is flared at its upper end, a stripper mounted on the body and having a portion located in the space between the jaws and slidably receiving the punch member, and a guide member mounted on the last mentioned jaw and adjustable transversely of the space between the jaws and having an end portion located in the space between the jaws with an edge vertically above the side wall 01": said chip opening and at the side of the path of movement of the work engaging end of the punch member.

In testimony whereof I afiix my signature in presence of two witnesses.

ALBERT T. NUSS. lVitnesses:

M. E. LAUGHLIN, Gno. A. BYRNE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

